橡胶颗粒对再生混凝土氯离子渗透性影响研究  

Effecting Study of Rubber Particles on the Chloride Permeability of Recycled Aggregate Concrete

作　　者：王文婧[1] 许家文[1] 刘元珍[1] 李珠[1] 

机构地区：[1]太原理工大学建筑与土木工程学院,030024

出　　处：《混凝土与水泥制品》2013年第11期15-17,共3页China Concrete and Cement Products

基　　金：国家自然科学基金(50778118)

摘　　要：在再生混凝土中掺入废旧汽车轮胎经处理后得到的橡胶颗粒,采用ASTM C 1202法对6组不同橡胶颗粒掺量的混凝土试件进行抗氯离子渗透性试验。结果表明,再生混凝土中掺入橡胶颗粒拌合而成的混凝土具有很低的氯离子渗透性,28d氯离子扩散系数均小于1×10-8cm2/s,且氯离子扩散系数随橡胶颗粒掺量的增加而减少。Mixing the rubber particles obtained from the processed automobile tire into the recycled aggregate con- crete and adopting the method of ASTM C 1202, the resistance test to the penetration of chloride ions for the 6 groups of concrete specimens mixed with different quantities of rubber particles is carried out. Results show that the chloride ion penetration of the recycled aggregate concrete mixed with rubber particles is very low and all the chloride ion diffusion coefficients of 28 days are less than 1×10^-8cm^2/s, moreover, the chloride ion diffusion coefficient will decrease as the dosage of rubber particles increases.

关 键 词：再生混凝土 橡胶颗粒 导电量 氯离子扩散系数 

分 类 号：TU528.41[建筑科学—建筑技术科学]